ChessN Pro 2.4.0 ChessN Pro is a chess game viewer/editor. ChessN Pro is an excellent game viewer/editor for chess games which have been saved in Portable Game Notation (PGN) form. We think of PGN as the basis of ... Cost: $20 Buy full version       Trial version       Publisher: Computer Vision Research, Inc.     Descriptions ChessN Pro 2.4.0: ChessN Pro is a chess game viewer/editor. ChessN Pro is an excellent game viewer/editor for chess games which have been saved in Portable Game Notation (PGN) form. We think of PGN as the basis of Open Systems Chess. It's an internationally recognized standard way of archiving chess games that doesn't belong to a single company. ChessN Pro allows you to enter your own games or the games of your local club. It is an excellent resource for keeping track of correspondence chess games. Since all of the games entered are saved in PGN format, they are easy to share since nearly all the popular computer chess games can at least read the files.